Machine Learning and Intelligent Communications. Second International Conference, MLICOM 2017, Weihai, China, August 5-6, 2017, Proceedings, Part II

Research Article

A Novel Structure Digital Receiver

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  • @INPROCEEDINGS{10.1007/978-3-319-73447-7_9,
        author={Zijian Zhang and Dongxuan He and Yulei Nie},
        title={A Novel Structure Digital Receiver},
        proceedings={Machine Learning and Intelligent Communications. Second International Conference, MLICOM 2017, Weihai, China, August 5-6, 2017, Proceedings, Part II},
        proceedings_a={MLICOM},
        year={2018},
        month={2},
        keywords={Frequency offset Matched filter},
        doi={10.1007/978-3-319-73447-7_9}
    }
    
  • Zijian Zhang
    Dongxuan He
    Yulei Nie
    Year: 2018
    A Novel Structure Digital Receiver
    MLICOM
    Springer
    DOI: 10.1007/978-3-319-73447-7_9
Zijian Zhang1,*, Dongxuan He1,*, Yulei Nie1,*
  • 1: Beijing Institute of Technology
*Contact email: 2120150844@bit.edu.cn, 2120130765@bit.edu.cn, nieyulei@bit.edu.cn

Abstract

This paper studies a novel structure digital receiver to demodulate signal with large frequency offset. When the carrier frequency offset is large, the matched filter will filter out part of the in-band signal, resulting in decrease of SNR and deterioration of BER. Different from traditional receiver structure, the novel receiver put a coarse frequency correction module before the matched filter, which will reduce the negative influence of matched filter under large frequency offset. Simulation results show that the new structure displays similar performance to the traditional structure under small frequency offset and great performance improvement when the frequency offset is large.